Special Research Report Computer Design of Glued Laminated Timber Bridge Systems.

摘要

This report presents investigations of the use of glued laminated structural timber for system building of short span bridges. With the recent developments and performance appraisal of glued laminated components,the all-timber bridge becomes attractive. Longitudinal stringers with transverse decking properly designed and preservatively treated,produces a system which is easy to erect, enduring and has little maintenance requirements. Investigations also include using steel and prestressed girders with vertically glued laminated decking. Computer programs are developed to design two types of systems: glulam girders with glulam deck and prestressed spread box girders with glulam deck. Design information provided in this report is adequate to enable comparisons of the systems and to build prototypes to study the systems under real conditions.